Ives 3SP1 Steel Spring Full Mo...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$36.60
$19.67
IVE_3SP1_630_HO_square

Ives 3SP1 Steel Spring Full Mortise Hinge with 3 Knuckles for Self-Closing Doors

(No reviews yet) Write a Review

Model: 3SP1 4.5x4.5 652
Selected Finish is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$36.60
$19.67
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Ives 3SP1 Steel Spring Full Mortise Hinge with 3 Knuckles for Self-Closing Doors

Professional Self-Closing Door Hardware Solution

The Ives 3SP1 Steel Spring Full Mortise Hinge provides reliable self-closing functionality for doors up to 120 lbs and 36" width. This 3-knuckle spring hinge features steel construction with square corners and includes all necessary fasteners for hollow metal and half metal/half wood applications. Certified to exceed ANSI/BHMA A156.1 performance standards and meets ANSI/BHMA 156.7 template dimensions for professional installations.

Professional Features & Benefits

  • Door Capacity: Maximum door weight 120 lbs with maximum door width 36" for versatile commercial applications.
  • Fire-Rated Compatibility: Maximum labeled door size 3'0" wide x 7'0" x 1-3/4" thick as set in NFPA #80 standards.
  • Complete Installation Package: Packed with fasteners for hollow metal and half metal/half wood applications including 12-24 x 1/2 UFPHMS and 12 x 1-1/4 FPHWS screws.
  • Adjustable Spring Tension: Includes pin for setting spring tension and adjusting wrench for precise self-closing adjustment.
  • Heavy-Duty Steel Construction: 1040 Steel substrate provides exceptional durability for medium-duty commercial applications.
  • ANSI/BHMA Certified: Exceeds ANSI/BHMA A156.1 performance standards and meets ANSI/BHMA 156.7 template hinge dimensions.
  • UL Classified: UL Classified for windstorm rated assemblies (R37965) ensuring code compliance.
  • Customization Options: Available with rounded corners (RC-1/4, RC-5/8) and security fasteners (SEC - pin-in-socket) for enhanced applications.

Technical Specifications

  • ANSI/BHMA: ANSI/BHMA A156.1
  • Commercial/Residential: Commercial
  • Corner Style: Square Corners
  • Department: Door Hardware
  • Duty Level: Medium Duty
  • Fasteners: Wood and Machine Screws
  • Knuckles: 3
  • Product Category: Door Hinges and Pivots
  • Product Function: Spring Hinges
  • Product Group: Door Hinges and Pivots
  • Product Model: 3SP1
  • Product Subgroup: Full Mortise Hinges
  • Product Substrate: Steel
  • Product Type: Hinges
  • Subcategory: Hinges and Pivots

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness, weight capacity (120 lbs maximum), and door width (36" maximum) compatibility.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for proper mortise preparation.
  3. Prepare door and frame by cutting mortises and drilling required holes per manufacturer specifications for full mortise installation.
  4. Install hinge using provided fasteners (12-24 x 1/2 UFPHMS for hollow metal, 12 x 1-1/4 FPHWS for wood applications) per manufacturer torque specifications.
  5. Adjust spring tension using the provided pin and adjusting wrench for proper self-closing operation throughout the full range of door movement.
  6. Test door operation to verify proper self-closing function and make final spring tension adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Ives Quality?

Ives spring hinges deliver professional-grade reliability with steel construction certified to exceed ANSI/BHMA A156.1 performance standards and UL classification for windstorm rated assemblies. Complete with all necessary installation hardware and adjustment tools for immediate professional installation. Engineered for demanding commercial applications where dependable self-closing performance and code compliance are essential.

Product Specs

Subcategory:
Hinges and Pivots
Knuckles:
3
Fasteners:
Wood and Machine Screws
Corner Style:
Square Corners
Product Group:
Door Hinges and Pivots
Product Subgroup:
Full Mortise Hinges
Product Type:
Hinges
ANSI/BHMA:
ANSI/BHMA A156.1
Duty Level:
Medium Duty
Commercial/Residential:
Commercial
Product Model:
3SP1
Product Function:
Spring Hinges
Product Category:
Door Hinges and Pivots
Product Substrate:
Steel
Department:
Door Hardware

Ives 3SP1 4.5x4.5 652 – Frequently Asked Questions

1) What sizes does the Ives 3SP1 spring hinge come in, and will it drop into my existing hinge cutout?
Three sizes: 4" x 4", 4-1/2" x 4", and 4-1/2" x 4-1/2", all with square corners. If your door and frame are already mortised square-corner for a 4 x 4 or 4-1/2 x 4-1/2 hinge, the matching 3SP1 goes into the same pocket. If your existing hinges have radius corners, the square-corner 3SP1 will leave a gap at each corner of the mortise; Ives does offer the 3SP1 with rounded corners as an RC-1/4 or RC-5/8 option. The hinge meets ANSI/BHMA 156.7 template dimensions, so screw hole locations follow the standard template.
2) Spring hinge or door closer for a self-closing apartment or stairwell door?
A spring hinge like the Ives 3SP1 puts the closing force in the hinge itself, so there's no arm or body on the face of the door and nothing to mortise beyond the normal hinge pocket. That's why it's the common choice in multi-family and light commercial where a closer would look heavy or get vandalized. What it does not give you is controlled sweep and latch speed, backcheck, or hold-open. If the door is heavier than 120 lbs, wider than 36 inches, or on a labeled opening bigger than 3'0" x 7'0", you need a closer instead.
3) What is the closest equivalent to an Ives 3SP1 spring hinge in 4-1/2 by 4-1/2 square corner?
The Stanley Security 2060R in 4.5 inch by 4.5 inch is the direct counterpart: it is a full mortise spring hinge with a square corner and a ferrous steel base, matching the 3SP1's spring hinge function, steel substrate and square corner style in the same 4.5 by 4.5 size. Stanley rates the 2060R heavy duty, while the 3SP1 is a medium duty hinge, so on a heavier leaf the 2060R is the one to spec.
4) If the door already has a closer, what hinge should I use instead of a spring hinge?
When a surface closer or overhead device is doing the closing, the hinge only has to carry and pivot the leaf, so a plain bearing or ball bearing butt hinge is the simpler choice. In 4-1/2 by 4-1/2 square corner, the Orca Hardware 3535 Series is a square corner ball bearing commercial hinge in medium duty. In 4 by 4 square corner, the Orca Hardware 4040 Series is a square corner plain bearing commercial hinge, also medium duty. Both share the 3SP1's square corner style and medium duty level without the spring mechanism or the tension adjustment step.
5) What heavy duty hinge should I use if the door is too heavy for a 3SP1?
The 3SP1 is a medium duty hinge. For a heavier leaf in the same 4-1/2 by 4-1/2 full mortise footprint, the Don-Jo HWBB74545 is a heavy weight full mortise ball bearing hinge in satin chrome, and the Hager BB1168 is a heavy duty full mortise ball bearing hinge furnished with a non-removable pin for out-swinging exterior openings. Neither is a spring hinge, so a heavy door still needs a separate closing device.
6) The frame is prepped for radius corner hinges, not square. What commercial hinge fits?
The 3SP1 is a square corner hinge, so a square corner mortise is what it drops into. Where the prep is radius, the Orca Hardware 4014 Series is a 4 inch by 4 inch 1/4 inch radius corner plain bearing commercial hinge and the Orca Hardware 3514 Series is a 3.5 inch by 3.5 inch 1/4 inch radius corner plain bearing commercial hinge, both medium duty like the 3SP1. Note that the 3SP1 itself is offered with rounded corner options RC-1/4 and RC-5/8 if the spring function has to stay.
7) How many Ives 3SP1 spring hinges do I need per door?
Ives ships the 3SP1 as a single hinge, so order by the leaf, not the pair. On a self-closing installation you normally combine spring hinges with standard bearing hinges on the same door rather than running spring at every position, and you set the closing force with the supplied tension pin and adjusting wrench. If one spring hinge doesn't pull the door shut and latch it, the fix is adding tension or a second spring hinge in place of a plain one, not a heavier hinge.
8) Do Ives 3SP1 spring hinges come with screws for a hollow metal frame?
Yes. Each 3SP1 is packed with fasteners for hollow metal and half metal/half wood openings: 12-24 x 1/2 undercut flat head machine screws for the metal side and 12 x 1-1/4 flat head wood screws for the wood side. The tension pin and adjusting wrench come in the box too, so nothing extra is needed to set the closing force. For a tamper-resistant opening, the hinge is available with SEC pin-in-socket security fasteners.
9) Is the Ives 3SP1 heavy duty enough for a high traffic entrance?
The 3SP1 is a medium duty steel hinge, certified to exceed ANSI/BHMA A156.1 performance standards, with a 1040 steel substrate and three knuckles. That suits offices, retail, schools and multi-tenant residential openings. On a genuinely abusive high-traffic entrance, a heavy weight ball bearing hinge is the harder-wearing choice: the Don-Jo HWBB84545 in 4-1/2" x 4-1/2" and the Hager BB1168 with non-removable pin are both heavy duty. Neither is self-closing, so you'd pair them with a door closer.
10) Can I use a spring hinge instead of a ball bearing hinge on a commercial door?
They do different jobs. A ball bearing hinge like the Orca 3535 Series in 4-1/2" x 4-1/2" square corner just carries the door; a spring hinge like the Ives 3SP1 carries it and closes it. If the opening needs to self-close, at least one spring hinge has to be in the hinge stack. If it doesn't, a bearing hinge will run quieter and take more cycles, and the Delaney CH401X commercial ball bearing hinge in 4" x 4" square corner matches the 3SP1's 4 x 4 square corner prep.
11) Is the Ives 3SP1 a full mortise hinge, and does it need both the door and the frame cut?
Full mortise, yes. Both leaves recess: one into the door edge, one into the frame rabbet, both cut square-corner. That means a full mortise hinge is not a swap for a half mortise or full surface hinge. If your frame is not prepped, the Hager 1129 is a half mortise hinge that mortises into the door but screws to the face of the frame, though it's a plain bearing hinge and won't self-close.
12) Can I use the Ives 3SP1 on a wood door in an apartment?
Yes. The 3SP1 ships with 12 x 1-1/4 flat head wood screws alongside the machine screws, so it covers a wood door in a hollow metal frame, the usual apartment arrangement. Cap it at 120 lbs and 36 inches wide. A solid core 3'0" x 7'0" wood leaf is normally within that, but a heavy custom or lead-lined door is not.
13) Is a 3-1/2 inch residential hinge a substitute for the 3SP1?
No. Hinges such as the Emtek 91013 residential plain bearing hinge and the Delaney 3-1/2 inch by 3-1/2 inch bulk steel residential interior hinge are 3-1/2 by 3-1/2 plain bearing butts sold in pairs for interior residential openings, and the Delaney pair carries a 5/8 inch radius corner rather than a square corner. The 3SP1 is a commercial spring hinge with square corners that closes the door itself. Swapping a residential butt in removes the self-closing function entirely and, on a radius-corner hinge, will not drop into a square corner mortise.
14) Which hinge do I need if the opening has to carry power to an electric lock instead of self-close?
That is a different hinge entirely. The Command Access ETH-CB70 is a 3 knuckle standard weight steel base energy transfer hinge in medium duty, matching the 3SP1's 3 knuckle count and medium duty level while routing wire through the barrel. If the opening also needs door position sensing, the Command Access ETM-CB70 is a 3 knuckle steel base energy transfer monitor hinge with door position sensing, also medium duty. For a factory 4-wire concealed conductor in 4-1/2 by 4-1/2 square corner, the Stanley CECB1900R54L is a three knuckle concealed bearing concealed conductor steel full mortise hinge, left-handed. None of these close the door on their own the way a spring hinge does.
15) What is the difference between the Ives 3SP1 and a 5 knuckle standard weight hinge like the McKinney MP79?
The McKinney MP79 MacPro is a 5 knuckle standard weight full mortise hinge, and the McKinney MPB79 is the 5 knuckle standard weight MacPro as well; the Stanley FBB191 in 4.5 by 4.5 is a 5 knuckle full mortise standard weight hinge rated heavy duty. All are plain butt hinges. The 3SP1 is a 3 knuckle full mortise hinge whose barrel houses a spring, with a tension pin and adjusting wrench supplied to set the closing force. Knuckle count and barrel height differ, so the two are not interchangeable in an existing hinge cutout without checking the template.
16) Can I use a half mortise hinge in place of the Ives 3SP1?
Only if the frame calls for it. The Hager 1129 is a half mortise plain bearing commercial hinge in 4-1/2 inch standard weight steel, rated heavy duty, and half mortise means one leaf mortises into the door while the other surface-applies to a channel iron frame. The 3SP1 is a full mortise hinge, mortised into both door and frame. The preps are not the same, so the two cannot be swapped on the same opening.
17) For a stairwell or corridor door that needs a security pin, is there an alternative to the 3SP1?
The 3SP1 is offered with SEC pin-in-socket security fasteners for openings where the screws must not back out. Where the concern is the hinge pin rather than the screws, the Hager BB1168 is a non-removable pin full mortise ball bearing heavy duty hinge, and the Deltana CSB45N is a 4-1/2 by 4-1/2 square hinge pair with a non-removable pin. The Deltana DE44R5TA is a 4 inch by 4 inch steel security hinge pair with a 5/8 inch radius corner, so it suits radius prep. All three are butt hinges without the self-closing spring.
18) Can a double acting pivot replace a spring hinge on a door that has to swing both ways?
For a two-way opening, a butt hinge of any kind is the wrong device. The BEST DAP-3 is a heavy duty double acting pivot for commercial interior doors, which lets the leaf swing in both directions and returns it to center. The Ives 3SP1 is a full mortise spring hinge and swings one way only, so it suits a single-acting opening that must self-close.
19) Will the Ives 3SP1 match the hinge finish on the rest of my building's doors?
Twelve finishes cover most commercial standards: 600 primed for painting, 631 matte black, 632 bright brass, 633 satin brass, 639 satin bronze, 640 dark satin bronze, 641 oxidized bronze, 643E aged bronze, 646 satin nickel, 651 bright chrome, 652 satin chrome, and 695 dark bronze. All twelve are offered in each of the three sizes, so you can standardize a finish across 4 x 4, 4-1/2 x 4, and 4-1/2 x 4-1/2 openings. 652 satin chrome and 630-family stainless looks are the usual match for commercial ball bearing hinges already in a building; 600 is the one to order if the hinges get painted with the frame.
20) Are Ives 3SP1 spring hinges adjustable after they're installed?
Yes, and you'll want to adjust them. A tension pin and an adjusting wrench ship with the hinge; you wind the spring and set the pin to hold the tension, then test the door through its full swing. Set it too light and the door won't latch, too heavy and it slams and gets hard for anyone to pull open. Re-tensioning later takes the same two tools, so keep the wrench.
21) Is a concealed bearing hinge like the Hager 920 the same thing as the Ives 3SP1?
No, though both are full mortise and medium duty. The Hager 920 is a full mortise concealed plain bearing hinge with 2 knuckle steel construction, where concealed refers to the bearing being hidden inside the barrel for appearance. The 3SP1 is a 3 knuckle steel hinge whose barrel holds a closing spring. Concealed bearing describes how the hinge turns; spring describes what it does to the door.
How fast can I get the Ives 3SP1 4.5x4.5 652 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Ives 3SP1 4.5x4.5 652 come with a warranty?
Absolutely. The Ives 3SP1 4.5x4.5 652 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Ives 3SP1 4.5x4.5 652?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Ives 3SP1 4.5x4.5 652 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.

Videos

!